42618113 has 2 divisors, whose sum is σ = 42618114. Its totient is φ = 42618112.

The previous prime is 42618101. The next prime is 42618127. The reversal of 42618113 is 31181624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42601729 + 16384 = 6527^2 + 128^2 .

It is a cyclic number.

It is not a de Polignac number, because 42618113 - 2¹⁰ = 42617089 is a prime.

It is not a weakly prime, because it can be changed into another prime (42618013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21309056 + 21309057.

It is an arithmetic number, because the mean of its divisors is an integer number (21309057).

Almost surely, 2^42618113 is an apocalyptic number.

It is an amenable number.

42618113 is a deficient number, since it is larger than the sum of its proper divisors (1).

42618113 is an equidigital number, since it uses as much as digits as its factorization.

42618113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 26.

The square root of 42618113 is about 6528.2549735745. The cubic root of 42618113 is about 349.2995870378.

Adding to 42618113 its reverse (31181624), we get a palindrome (73799737).

The spelling of 42618113 in words is "forty-two million, six hundred eighteen thousand, one hundred thirteen".